Flue-cleaner



(No Model.)

0. L. DILLON. PLUE CLEANER.

Patented Apr. 6, 1897.

WITNESSES:

ATTORNEY.

UNITED STATES PATENT OFFICE.

CHARLES LOUIS DILLON, OF LA OROSSE, WISCONSIN.

FLU E-CLEANER.

SPECIFICATION forming part of Letters Patent No. 580,258, dated April 6,1897.

Application filed JulylB, 1896. Serial No. 599,595. (No model.)

To all whom, it may concern:

Be it known that 1, CHARLES LOUIS DILLON, a citizen of the UnitedStates, and a resident of La Crosse, in the county of La Grosse andState of Visconsin, have invented certain new and useful Improvements inBoiler-Flue Cleaners; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, forming a partof this specification.

My invention has relation to improvements in boiler-flue cleaners, andmore particularly to that class of flue or tube cleaners in which theconverging spring-legs are provided with an integral threaded socket andtheir outer ends formed with semicircular cutter-heads arrangedtransversely and at a right angle to said spring-arms and havingsemicircular grooves forming parallel cutting edges; and the object isto provide a simple, cheap, and effective device for this purpose.

To this end the novelty consists in the construction, combination, andarrangement of the same, as will be hereinafter more fully described,and particularly pointed out in the claim.

In the accompanying drawings the same reference-characters indicate thesame parts of the invention.

Figure 1 is a perspective view of my improved cleaner. Fig. 2 is acentral longitudinal section of the same. Fig. 3 is an end view thereof.

The cleaner proper consists of the iron bar A, at one end of which arewelded the resilient members or legs B B, the free ends of which havebolted to them the semicircular heads 8. At suitable points along themembers B B are alined holes 2 2, through which pass the bolt 3, saidbolt having the nut 4, engaging the threaded end 5, by means of whichthe resilient members or legs B B may be adjusted at will. The saidcutter-heads 8 are composed of the lugs 6, which receive the bolts 7,which secure the cutter-heads to the members or legs 13. The said headshave a semicircular circumferential groove 9,which forms the cuttingedges 10.

By referring to Fig. 3 it will be seen that the cutting edges 10 at theintersection of the outer edges of the semicircular circumferentialgroove 9 and the right-angular parallel plane faces 12 of thesemicircular heads 8 form acute angles, the plane face 12 of which isarranged at a right angle to the line of travel to form a cutting edgeas contradistinguished from a scraping edge, similar to the approvedform of a modern metal-cutting tool, while a cut-away portion,represented by the groove, corresponds to the heel of the metal tool andis so formed as to give clearance to the tool while in operation. Thisis an important feature of my construction and greatly increases theeffectiveness of the same. Quadrantal-shaped ends or guides 11 aresituated at right angles to the said heads and project longitudinallytherefrom to facilitate the insertion of the tool in the flue.

The end of the bar A is provided with a threaded socket 5, whichreceives the detachable handle 6.

Having thus fully described my invention, what I claim as new anduseful, and desire to secure by Letters Patent of the United States, 1s-

An improved boiler-flue cleaner, comprising the integral convergingspring-legs B B, and the transverse bolt 3 extending through said legsand adapted to adj ustably compress the same, in combination with thesemicircular heads 8 8, fixed to the outer ends of the said legs, and ata right angle thereto, and provided with the parallel plane faces 12 12,and the semicircular circumferential groove 9, the outer edges of whichintersect with the plane faces 12 12 of the heads, to form cutting edges10 10, the plane cutting edge of which is at a right angle to the lineof travel, the groove 9 forming a clearance for said cutting edge,substantially as shown and described.

OHARLES LOUIS DILLON. IVitnesses:

WALTER 0. WINTER, JOHN J. EscH.

